EP2993031B1 - Klebemittelabgabevorrichtung - Google Patents
Klebemittelabgabevorrichtung Download PDFInfo
- Publication number
- EP2993031B1 EP2993031B1 EP15186750.4A EP15186750A EP2993031B1 EP 2993031 B1 EP2993031 B1 EP 2993031B1 EP 15186750 A EP15186750 A EP 15186750A EP 2993031 B1 EP2993031 B1 EP 2993031B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- wheel
- wipe
- paper
- recesses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0808—Details thereof, e.g. surface characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/16—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/147—Processes of additive manufacturing using only solid materials using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
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- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/526—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by printing or by transfer from the surfaces of elements carrying the adhesive, e.g. using brushes, pads, rollers, stencils or silk screens
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- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/20—Post-treatment, e.g. curing, coating or polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
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- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
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- B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/14—Details of grippers; Actuating-mechanisms therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
- B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Definitions
- the present invention relates to layered object manufacture (LOM) systems providing rapid prototyping capacity.
- LOM layered object manufacture
- the disclosure relates to an adhesive dispensing device and in particular an adhesive dispensing device for use in applying adhesive in a Layered Object Manufacture (LOM) system for rapid prototyping (RP).
- LOM Layered Object Manufacture
- Rapid prototyping is defined as computer-controlled additive fabrication, in that an object can be fabricated by the addition of material rather than conventional machining methods that rely on removal or the subtraction of material.
- the term "rapid” is, it will be appreciated, a relative term but one that has specific meaning within the art, in that construction of a finished three dimensional articles can take from several hours to several days, depending on the method used and the size and complexity of the model.
- LOM Layered Object Manufacture
- RP Rapid prototyping
- LOM similarly to other rapid prototyping techniques, involves the use of a three dimensional (3D) computer aided design (CAD) of an object / part to be made, from which a stereolithography (STL) or other suitable format file is generated within a CAD package.
- CAD computer aided design
- STL stereolithography
- the STL file is processed and in effect virtually sliced in the Z-axis at a thickness matching the thickness of the substrate material used. This creates a series of cross sections of the part and at any particular height each one has a simple two dimensional (2D) profile.
- a cutting apparatus is then used to trace the 2D profiles and thus cut the shapes onto thin sheets of raw material.
- each individual thin sheet is then stacked and bonded one on top of another to produce a finished 3D object.
- the paper is provided in the form of a roll.
- the roll of paper may be provided with adhesive already present on the underside.
- the adhesive may be activated by heat and/or pressure to form a bond onto the previous layer.
- adhesive may be applied to the underside of the material as it is drawn from a roll.
- a machine is often operable only with specifically manufactured rolls of material, which may be expensive to obtain and/or difficult to replace.
- paper is composed of a randomly felted layer of fibre, it follows that the structure may have varying degrees of porosity. Paper is a highly porous material and contains as much as 70% air. Porosity of a sheet is an indication of the moisture absorption of the paper, or the ability of a particular sheet of paper to accept ink, water or in this case adhesive. When selecting a particular type of paper for LOM, it is important to consider the porosity of the paper.
- the properties of the paper are clearly closely related to, and place limits on the types of adhesive that may be used. There are further issues and concerns relating to the application of adhesive to paper.
- printer like dispensing systems which rely on computer controlled electro-mechanical devices such as piezoelectric dispensing heads, the heads are often of a delicate nature and over long periods of inactivity these devices can become clogged and may need to be serviced, maintained and replaced frequently. Thus such arrangements may have high overheads for maintenance and repair.
- Document WO 01/23100 discloses a system for applying adhesive, comprising a roll with a pattern of grooves etched on its surface, for transferring adhesive.
- a LOM system which provides in a first arrangement for the use of water based adhesives as a binding agent for the layering process.
- a LOM system allows for the use of water based adhesives while minimising the warping or distortion of the cellulose based paper material that is used in the layering.
- a LOM system utilises standard dimensioned paper sheets that may be taken in single sheet quantities from a storage location to workplace where adhesive may be applied to bind successive sheets of the paper to generate a layered final structure.
- a LOM system which includes control means to enable the discriminatory application of specific volumes of adhesive at specific locations on the substrate. This enables the controlled dispensing of adhesive to specific location which advantageously allows for reduced volumes of adhesive to be used and also ensures that the adhesive is applied specifically at the locations where the adhesive is required.
- Such systems comprise an adhesive applicator wheel having a plurality of circumferentially spaced apart recesses for receiving adhesive, wherein the wheel is rotatable to convey adhesive filled in one or more recesses to a target substrate and to deposit controlled amounts of adhesive at discrete points thereon.
- the wheel comprises a contact surface configured for contact with the target substrate, and wherein the plurality of recesses are formed therein.
- the device comprises an adhesive wipe which together with the wheel defines a sealed adhesive filling chamber for filling adhesive into one or more recesses.
- the wipe is coupled to a pressurized supply of adhesive.
- the wipe defines the side walls and opening of the chamber.
- the wipe is formed for conformity with the wheel.
- the sealed adhesive filling chamber comprises a vent means to enable the filling of a recess by the displacement of air from the recess and venting of the air from the chamber.
- the vent means comprises a formation in the wipe configured for interaction with a recess.
- the recesses of the wheel are filled as they rotate through the chamber.
- the contact surface is configured for sealing contact with the wipe.
- the device comprises biasing means for maintaining the wipe in sealing contact with the wheel.
- the contact surface is integral with the wheel.
- the contact surface comprises a ring mountable to the wheel.
- the dimensions and spacing of the recesses may be varied according to the amount of adhesive to be deposited.
- the recesses have a volume in the order of 10-50 nanolitres.
- the recesses have a substantially hemispherical form.
- the contact surface is comprised of a low friction material and/or comprises a low friction coating.
- the target substrate comprises a paper substrate.
- the paper is provided in sheet form.
- the adhesive comprises a water based adhesive, for example a PVA adhesive.
- adhesive is deposited from a filled recess to the target substrate by means of capillary action.
- the wheel is coupled to a wheel drive means for controlling the direction and angular velocity of rotation of the wheel.
- the device is mounted for translation relative to a target substrate.
- the device is coupled to a drive means to control the linear velocity of the device relative to the target substrate.
- the angular and linear velocities are controllable to effect the laying down of variable amounts of adhesive on the target substrate as required.
- the invention provides a layered object manufacturing (LOM) system for rapid prototyping incorporating an adhesive dispensing device in accordance with claim 1.
- LOM layered object manufacturing
- an adhesive dispensing device 1 comprising an adhesive filler 2 coupled to an adhesive applicator wheel 3.
- the adhesive filler 2 is connected under pressure to an adhesive feed at an inlet portion 4 and comprises one or more axial channels 6 which convey adhesive 20 from the inlet portion 4 to an adhesive outlet portion 5.
- the adhesive outlet portion 5 in this case comprises a chamber 8 defined by a wipe 7 together with the adhesive applicator wheel 3.
- the wipe 7 depends or extends downwardly from the filler 2 and has lateral side walls 9 and 10 connected by front and back longitudinal side walls 11 and 12 defining an opening and configured to be coupled to and to contact the wheel.
- the wipe 7 and applicator wheel 3 are designed to correspond and co-operate to define the chamber 8 in which the wipe defines the side walls and contact surface of the wheel defines the base thereof.
- the dimensions and form of the wipe correspond to the wheel 3 such that when the wipe 7 is coupled to the wheel, the adhesive chamber 8 that they define is effectively a sealed chamber.
- the contact side or open edge of the wipe 7 comprises or is provided in an arc form corresponding substantially to the form of the wheel 3.
- the filler 2 comprises or may be in contact with a biasing means, for example, spring means to maintain the wipe 7 in contact with the wheel 3 to maintain the seal during rotation of the wheel.
- the adhesive applicator wheel 3 comprises a contact surface 13 having a plurality of recesses 14 for receiving adhesive. Adhesive is filled into the recesses 14 at the wipe 7 and is conveyed in the recesses from the wipe to a target substrate 21 as the wheel is rotated.
- the form of the recesses 14 and the spacing thereof on the wheel 3 may be varied as required depending on the amounts of adhesive to be laid down. It will be appreciated that the volume of adhesive that is exposed and the duration of exposure of the adhesive to the air is minimal and as such problems such as premature curing of the adhesive are minimised.
- the applicator contact surface 13 is that portion of the wheel configured to contact both the wipe 7 of the filler 2 and a target substrate, for example a sheet of paper 21.
- the applicator contact surface 14 may be formed on or at the circumference of the wheel 3 or integral with the wheel as in the illustrated example embodiment.
- the wheel may be replaceable. For example, a number of different wheels having recesses of different dimensions or of different spacing or diameter may be provided for use. Depending on the specific application, a suitable wheel may then be interchanged for other types of wheel.
- the contact surface 13 and/or the recesses 14 may be comprised of or formed from a low friction material, for example Delrin and/or may comprise a low friction coating, for example Teflon.
- the applicator wheel 3 is coupled to a drive mechanism (not shown) which is operable by means of a controller so as to drive the wheel 3 in an anti-clockwise or clockwise direction as required.
- the angular velocity of the wheel is variable, as required.
- the wipe 7 is configured to enable filling of the recesses 14 passing there through with adhesive 20.
- the wipe 7 or sealed chamber 8 incorporates a vent means which facilitates replacement of air from a recess 14 with adhesive by allowing air to be displaced from the recess by the adhesive and providing means to remove or drive the air from the wipe/sealed chamber.
- the vent means is provided by relative dimensions of the lateral side walls 9 and 10 of the wipe 7 and the recesses 14 and the manner of driven interaction of these components.
- the thicknesses (d1 and d2) of those portions of the lateral side walls 9 and 10 which contact the surface 13 of the wheel 3 are less than the diameter (d3) of the recesses 14.
- filling with adhesive and venting of air is achieved by virtue of the design of the chamber.
- one of the lateral side walls 9 and 10 will present the leading edge of the filling chamber.
- the lateral side walls 9 and 10 are formed such that the edges which contact the wheel 3 have an area less than the area of a recess 14.
- the arrangement of the recesses 14 on the wheel 3 relative to the wipe 7 provides the ability to stop and restart the wheel 3 without any leakage of adhesive.
- To enable the wheel 3 to stop rotating without any leakage of adhesive requires that the airtight seal between the wheel 3 and the wipe 7 be maintained.
- An airtight seal is only possible if there are no recesses 14, either partially or wholly, under the leading / trailing edges of the wipe.
- an airtight seal can only exist if the exact angular relationship between each recess and the adhesive filled chamber 8 is known, so that the recesses are completely enclosed by the chamber 8 when the wheel is stopped. Stopping the wheel in this precise angular location immediately cuts off the flow of adhesive without the use of additional valves.
- This feature which acts as an integral seal means, obviates the need for a doctor knife to regulate the flow of adhesive normally present on prior art designs.
- a further advantage of this arrangement is that the system may be left in this sealed position for extended periods of time and then restarted directly without problems such as the adhesive becoming hard as the system is sealed and no air is present.
- the arrangement further allows for the wheel to be stopped and started as desired without any excess build-up of adhesive. This is particularly advantageous in situations where mid process, the adhesive reservoir needs to be filled with additional adhesive and as such the process needs to be stopped for some time. By minimising the volume of adhesive that is exposed to air, such temporary cessation of the process does not materially weaken the structure of the finished product.
- a wheel angular position measuring device is used to detect and measure this exact angular relationship.
- a wheel angular position measuring device may for example comprise of a proximity sensor and a metal flag. The metal flag passes under the proximity sensor once per revolution. The angular position of the metal flag relative to the holes of the wheel is known. Thus when the flag passes under the proximity sensor the machine calculates the angular revolution that is required to seal the system.
- a method of deposition of adhesive using the adhesive dispensing device 1 is shown.
- the applicator wheel 3 is positioned in contact with a target substrate 21, here, a sheet of paper.
- the wheel 3 is translated relative to the substrate 21 and is also rotated by the wheel drive means.
- the translational and rotational movements may be driven independently.
- an adhesive filled recess 14 contacts the substrate 21, in this case a porous paper substrate the adhesive is deposited onto the substrate by capillary action due to the inherent porosity or water absorption of the substrate.
- a matrix of adhesive dots 22 is deposited.
- the width of the lateral side walls 9 and 10 (d4, see Fig. 3 ) of the contact portion of the wipe 7 is less than the width (d5) of the contact surface 13 of the wheel.
- the adhesive dispensing device 1 may further comprise a cleaning mechanism for the wheel.
- the wheel When required, the wheel may be positioned over a cleaning area and brought into contact with a cleaning substrate for example, of a sponge, rubber or silicone based material which cleans any residual adhesive remaining on the wheel by rotating the wheel for a number of revolutions. A small quantity of a cleaning liquid may be added to the cleaning substrate to aid in the cleaning process.
- the wheel 3 may be connected to a wheel drive means (not shown) to effect rotation as required in the clockwise or anti-clockwise directions, and at the required angular velocity.
- the adhesive dispensing device 1 mounted for translational movement relative to a substrate 21, for example an X-Y frame to enable movement of the head relative to the substrate, or alternatively the substrate may be provided mounted on an X-Y stage for movement relative to the head.
- a substrate 21 for example an X-Y frame to enable movement of the head relative to the substrate, or alternatively the substrate may be provided mounted on an X-Y stage for movement relative to the head.
- the wheel drive means may be connected to the rotatable wheel 3 via a clutch to enable the wheel to be either driven or not which enables the wheel freewheel.
- the wheel drive means may be controlled to drive with the wheel so that the difference between the angular velocity of the wheel and the linear velocity of the dispensing device relative to the substrate is zero, which prevents skidding or spinning of the wheel.
- the wheel drive means may be adjustable to provide a relative difference in the angular and linear velocities to effect skidding or spinning of the wheel as required to enable control of the volume of adhesive deposited at a particular point on the substrate 21, as required. The high level of control over deposition of adhesive is advantageous.
- the dispensing system When the dispensing system reaches the end of a particular indexing line in a first, for example X axis, it is then operated in the opposite direction [-X] on the next indexing line.
- Fig. 5 shows the applicator wheel at the end of a line of adhesive which was laid down by rotating the wheel in the clockwise direction while moving it to the right.
- the adhesive dispensing device 1 is raised from the substrate and indexed in the Y-direction to the starting position of the next adjacent line to commence movement to the left (-X direction) and rotation in the anticlockwise direction. However, rotation in the anticlockwise direction would not result in the deposition of adhesive since the recesses 14 rotating into contact with the substrate are not filled.
- the device 1 is thus configured such that the wheel 3 is rotated and all of the recesses 14 are filled at the start of each adhesive line.
- the system enables control of the angular velocity of the wheel for the purpose of adjusting the amounts of adhesive deposited.
- the control of the angular velocity provides control for the purpose of filling the recesses at the wipe 7.
- the angular velocity of the wheel 3 dictates the length of time under the leading or trailing edges of the wipe 7 where the exchange of gas takes place and causes filling of the recesses 14.
- rotating the wheel 3 slowly facilitates a larger fill quantity within each recess, and rotating the wheel 3 at a faster speed results in a lower fill quantity within each recess.
- Different fills may be desirable within the same build. For example it might be desirable to have a higher quantity of adhesive on the part being made and a lower quantity on the waste structure around the part. Therefore to deposit lower quantities of adhesive on the waste structure the wheel 3 would be made to rotate at an angular speed which is out of sync with the linear velocity of the dispensing mechanism and hence causes skidding. Therefore enabling fewer filled recesses to make contact with the substrate over a particular length.
- the angular velocity of the wheel 3 is increased to be higher than the linear velocity of the dispensing device, and therefore cause spinning. Spinning of the adhesive wheel 3 causes more filled recesses to be brought into contact with the substrate for a given length.
- the adhesive dispensing device 1 of the invention is suitable for use with a water based PVA adhesive. Due to the nature of such adhesive the open time between laying down the adhesive and drying/setting of the adhesive is long, thereby enabling sufficient time to place a subsequent substrate layers or sheets.
- the adhesive dispensing device 1 of the invention provides for a very accurate control of the amounts of adhesive applied to a substrate. This is achieved in part by virtue of the form and dimensions of the recesses of the applicator wheel and by the spacing of the recesses on that wheel.
- the adhesive dispensing device 1 may be configured and used to dispense adhesive nanodots i.e. dots of adhesive having a volume of the order of 10-50 nanolitres, preferably in the order of 20-30 nanolitres. In this way the device may be used to deposit controlled amounts of a water based adhesive and such control obviates the problem of saturation of the substrate.
- a Layered Object Manufacturing (LOM) system 50 for rapid prototyping incorporating an adhesive dispensing device 1 is described.
- LOM Layered Object Manufacturing
- FIG. 9 and 10 the substrate feed mechanism of the system is described.
- An exemplary method of layered object manufacture is described with reference to Figs. 11-15 .
- a method in accordance with the present teaching starts with a computer generated image file of the desired final model.
- a final un-weeded dice block is generated, Figure 12 .
- the model is encapsulated within the dice block of Figure 12 it is necessary to break away outer segments of the dice block to reveal the fabricated model ( Figure 13 ). This can be continued until the model is entirely revealed ( Figure 14 ).
- a first sheet is moved to the work surface or block (Step 1500).
- Adhesive is placed on that sheet using the adhesive dispensing device (Step 1501).
- An additional sheet is then placed on top of the adhesive- the adhesive serving to bind or adhere the two sheets together (Step 1502).
- Step 1503 By applying a roller over the two sheets in for example a single pass, the contact between the adjacent sheets may be improved (Step 1503).
- a cutting tool may be used to cut a template according to the desired final model on the sheet. The cutting tool may effect cutting of one or more sheets concurrently.
- Heat may then be applied to provide for curing (Step 1505).
- the process is then evaluated to determine whether the preceding steps need to be repeated (Step 1506). If they do then adhesive is applied on the upper most sheet (Step 1501). If not then the finished part (in form similar to that shown in figure 12 ) is removed (Step 1507).
- the LOM system 50 comprises a multifunctional head 51 comprising an adhesive dispensing device 1 and a cutter/grabber head 52.
- the multifunctional head 51 is operable to perform different operations in different modes. First of all the grabber of the cutter/grabber portion 52 when activated operates to transfer a sheet of paper from the paper supply and to convey that paper into position on the build plate, i.e. that location where the final structure is fabricated. In performing this operation the cutter/grabber portion 52 describes a path between the build plate to the paper supply and back to the build plate. Secondly the cutter of the cutter/grabber portion 52 when activated operates to cut the topmost sheet of paper on the build plate to the required form. Thirdly, the adhesive dispensing portion 1 of multifunctional head 51 when activated operates to apply adhesive, as required to the topmost sheet of paper on the build plate.
- the multifunctional head 51 is mounted on an X-Y frame 55, 56, which enables the head to be positioned and moved as required over a substrate 21 on a build object 54. Movements of the dispensing device 1 and the cutter/grabber head 52 in the vertical (Z-axis) direction are controlled in this case by the respectively connected solenoids 57 and 60. Paper is feed into the system in sheet format from the sheet supply 58 via a paper feed mechanism 59.
- the system 50 further comprises a single pass roller 61 which is passed over the build object 54 to ensure a positive bond of subsequent layers and minimise the burr produced from the cutting action.
- the system 50 further comprises a hot plate 62 for applying pressure and curing the adhesive.
- a method of use of the LOM system 50 for rapid prototyping is also provided and may be considered as follows: Using a three dimensional (3D) computer aided design (CAD) of an object / part that we want to make (see figure 9 ); a stereolithography (STL) file is generated within the CAD package and saved. This STL file is provided to a software package which controls operation of the system 50.
- 3D three dimensional
- CAD computer aided design
- STL stereolithography
- the software operates in accordance with the LOM system 50 to generate a series of cross sections of the part and at any particular height each one a simple two dimensional (2D) profile.
- Paper in this example, sheets of A4 size, is loaded into input tray 58 of the system 50.
- a single sheet 21 of paper is attached to the surface of a removable build plate 53 to act as the first uncut layer of the build object 54.
- the first sheet may be attached manually.
- a user operates the system/controller to output a control signal to the system 50 to commence building the build object 54 in 3D.
- the first steps are laying down of a base for the build object, i.e. a number of layers of paper and adhesive which will not be cut.
- the system 50 is operable to deposit a layer of adhesive in preparation for laying down of the second sheet of paper from the paper feed mechanism.
- the paper feed mechanism 59 separates a single page from the top of the ream and passes it to a waiting area.
- the cutter/grabber head 52 of the multifunctional head 51 is operated to grab the sheet and transfer it to the build area 53, 54 where it is placed on top of the recently applied adhesive layer.
- the roller 61 is passed over the sheets to ensure positive bonding between the layers.
- the system 50 then operates to lay down the sheets of paper (substrate layers) of the build object and to cut each layer to the required profile.
- individual sheets of paper typically A4 dimensioned, are taken from a storage location to the work area where they are layered one upon the other to effect fabrication of a final structure.
- a LOM system provided in accordance with the present teaching may use conventional stationary provided reams of paper or could even employ recycling material to effect the fabrication of the final three dimensional structures.
- the multifunctional head 51 moves the adhesive dispensing device 1 over the top surface of the topmost sheet of the base of the build object 54 and applies an adhesive layer prior to laying down the first sheet of paper to be provided with a cut profile.
- the adhesive dispensing device 1 is operated under control of solenoid 57 to bring the wheel 3 into contact with the topmost paper layer on the build object 54.
- the adhesive dispensing system 1 selectively applies adhesive at a higher density at those portions of the substrate which are part of the build object, and at a lower density at those portions of the substrate which are to be cut away i.e. the waste material portions thereof.
- This discriminatory application of the adhesive is facilitated through the use of a control system that can accurately direct the adhesive dispensing system to specific target areas, and also by employing of an adhesive dispensing system that does not effect a dripping or other inadvertent dispensing of the adhesive between desired dispensing positions.
- the multifunctional head 51 then picks up the next sheet from the paper feed mechanism 58, 59 and places it on topmost adhesive layer of the build object 54.
- the roller 61 passes over the build object pressing the layers together.
- the cutter/grabber head 53 is operated under control of solenoid 60 to bring the cutter into contact with the topmost paper layer on the build object 54.
- the X-Y positioning means 55, 56 then moves the cutter 53 to describe the path of the 2D profile of that layer and in doing so cuts out the form of that particular layer of the build object.
- the cutter 53 is operated to make a series of dicing cuts inside and outside the cut profile of that layer to aid the removal of waste material by dicing up the waste portion of the layer into small squares. Once the cutting of a layer is complete the build plate 53 is raised to make contact with a hot plate 62. This process continues until the entire 3D model has been built up layer by layer.
- the removable build plate 53 is removed from the machine to reveal the un-weeded diced block of paper, containing the 3D part inside (see figure 12 ).
- the diced cubes of waste material can now be removed by hand without any sharp implements like chisels, because the waste material received only the minimum quantity of adhesive from the adhesive dispensing apparatus.
- the 3D part inside becomes partially visible (see figure 13 ).
- the 3D part is fully exposed (see figure 14 ).
- the grabber portion 70 comprises a support surface 71 and corresponding moveable grip portion 72.
- the grip 72 is moveable between a first de-activated or rest state in which it located separated from the support surface ( Fig. 9.2 ) and a second activated position where is brought into contact with the support surface 71.
- the grabber portion is activated to grip a sheet of substrate material, here a sheet of paper 21 which is held between the grip portion and wedge.
- the sheet 21 comprises a leading edge 22 and a trailing edge 23. The sheet is gripped near the leading edge 22.
- the wedge 71 is angled to ensure the sheet being drawn from the feeder to the build object is forced into the first mode of bending and hence does not fall or droop down at the corners.
- This first mode of bending is visible in figure 10.2 where the sheet 21 is seen to bend downwards between the grabber device 70 and the paper feed mechanism 59.
- Figs. 10.1 to 10.4 illustrate an exemplary the sequence of steps of separation of a page from the feed and placement onto the build object 54.
- the multifunctional head 50 moves (here in the -Y direction) over to the paper feed mechanism 59, where the leading edge 22 of the new sheet 21.
- the multifunctional head 50 moves back in the opposite direction (here +Y direction) and at the same time the paper feed mechanism 59 feeds out the sheet 21.
- the speed of the paper feed 59 is set at a slightly higher rate than the linear velocity of the grabber head 70 which along with the wedge 71, causes the new sheet 21 to go into the first mode of bending as it is being drawn from the paper feed 59.
- the new page 21 is shown connected to the paper feed mechanism 59 and to grabber portion 70 in a first bending mode arrangement
- the support surface 71 is presented at an angle of approximately 10-20 degrees which presents the page in the first bending mode in which the sheet 21 bends downwards in the middle. Placing the page into this first bending mode prevents the corners of the leading edge of the sheet to droop down and possibly hit the build 54 as the sheet 21 is been positioned. Having this wedge support surface 71 prevents the need to have a page grabber the total length of the leading edge 22.
- the multifunctional head 50 continues to move in the +Y direction until the trailing edge 23 of the new sheet 21 is aligned with the trailing edge of the build object 54.
- the system operates to raise the level of the build object 54 in the Z direction so that when the grabber portion 70 lets go of the new sheet 21, it only has a small distance to fall. This co-ordination of level of the build object relative to the new sheet prevents sheet misalignment.
- the system advantageously operates with tolerance to any misalignment as the substrate sheets and adhesive are laid down separate. Therefore, if some misalignment does occur there is no problem because the new profile has not yet been cut on the surface.
- the system of the invention is used to deposit nanodots of adhesive on a substrate and is configured as follows:
- the adhesive dispensing device of Example 1 is thus capable of depositing in one example embodiment a maximum number of 47,647 nano dots per page, with each nano dot having a maximum volume of 22.9nl (Nano Litre). Therefore for a complete build volume, the total number of nanodots deposited would be in the order of 66 million.
- electromechanical dot dispensing systems may often have a life in the order of 100,000 to 1 million dots.
- system 50 incorporating the adhesive dispensing device 1 of the invention is thus suitable for use in the application of nanodots of adhesive for example in an LOM system for rapid prototyping.
- the recesses 14, described above have a substantially hemispherical form which has the advantage of providing substantially the greatest volume for any given surface area.
- This form has the further advantage of facilitating the easy interchange of air and adhesive as the recesses pass under the chamber 8, since the walls of the recesses are not perpendicular with the wheel contact surface and hence reduce the likelihood of air becoming trapped under the adhesive in the cavity, which may happen if the recesses had straight sided walls.
- example 1 a wheel having a diameter of 15mm is used. It will be appreciated that the diameter of the wheel may be varied as required. However, the wheel is preferably less that 20mm in diameter, and most preferably in the range of 15-20mm in diameter.
- the vertical distance between the sheet substrate and the next adhesive filled cavity 14 becomes less, so they are inversely proportional, which may results in an overrun.
- One method to compensate for this "overrun" is to increase the pitch between the cavities so that the vertical distance increases.
- the diameter of the wheel may be reduced to maintain a constant pitch between the nanodots, as in the case of the 15mm wheel of example 1.
- the wheel of the adhesive dispenser device has a single row of recesses on the wheel, it will be appreciated that a wheel may comprise more than one row of rows of recesses.
- the adhesive dispenser includes one wheel, in an alternative arrangement a number of wheels could be provided, one or more which may be independently moveable relative to others. Such arrangement would be aimed at increasing the speed of the adhesive application process.
- the recesses are equally spaced apart, in an alterative arrangement, the recesses spacing could be varied and substantially unequal. Such an arrangement would enable the deposition of different dot patterns depending on which part of the wheel was in contact.
- Example 1 which relates to an example method of LOM using A4 sheets, has been provided merely as an example of the range of application and the capabilities of an adhesive dispenser device of the invention.
- This example relates to a use of A4 paper substrates, however, it will be clear to the skilled person that substrates of an A3 size, letter, or other suitable size may also be used.
- the use of different thickness papers can also be used in the fabrication of the 3 dimensional models where there are regions of finer details required and others where such fine detail is not required. For example when fabricating vertical walls it is sufficient to use multiple layers of thick paper which can be cut to provide the necessary final vertical shape. If a curved surface is required this may be easier to fabricate using multiple thinner sheets which can be individually cut to provide a more continuous smooth angular finished surface.
- the use of thicker paper can also be considered where a quicker build is required as the layering of thicker sheets will develop the necessary height quicker than layering of thinner sheets. This could be beneficial when a design needs to be tested initially but once decided upon the finished article will be constructed using thinner sheets to give a better overall finish.
- the wheel of the dispensing device is mounted to move in straight lines an to apply adhesive in straight lines
- the entire adhesive dispensing system could be mounted to enable rotation about its own vertical axis. This would enable the wheel to follow the contour of the shape being made. This arrangement would provide for increased speed of the adhesive dispensing process while removing the need to prime the wheel as it would always rotate in the same direction.
- the applicator contact surface 14 is provided formed on the circumference of the wheel, it will be appreciated that in an alternative embodiment the contact surface 14 may have a ring form and that the ring may be removable and replaceable, for example, a number of different rings comprising recesses of different dimensions or of different spacing may be provided for fitting to the wheel.
- a layered object manufacturing system Use of such a system provides for the use of water based adhesives to bind successive layers of paper in generation of a three dimensional model.
- the paper can be provided in conventional paper sizes and is moveable within the system from a storage stack to a build object location, individual pages at a time.
- the system typically effects the application of adhesive onto the paper using an adhesive applicator wheel having a plurality of circumferentially spaced apart recesses for receiving adhesive.
- the wheel is rotatable to convey adhesive filled in one or more recesses to a target substrate and to deposit controlled amounts of adhesive at discrete points thereon.
- the invention provides a system of applying adhesive to paper which ensures that the paper does not become saturated with adhesive thus minimising warping of the sheet.
- the warping of the page is minimised by the fact that the quantity of adhesive deposited onto the substrate may be controlled as required.
- water based adhesives for example, Polyvinyl Acetate (PVA).
- PVA Polyvinyl Acetate
- the system similarly facilitates the use of different and standard types of paper.
- the system thus uses conventional and readily available raw materials for example standard office paper and has the advantages of being user-friendly and easy to operate and supply. It will be understood that by providing a LOM process that uses water based adhesives and can be used with conventional paper supplies that recycling and waste issues are less problematic than with existing RP solutions.
- the paper supply that is used in the LOM process can be waste or discarded paper, and the waste paper from the LOM process can be easily recycled in the same manner as conventional recycling.
- the discard of water based adhesives is easier than discarding solvents or plastics such as are used in existing RP processes.
- a multifunction head supporting the adhesive dispensing portion, and the cutter/grabber portion on the same head eliminates the need to provide separate mounting and moving means to effect movement of each of these components individually.
- the provision of a grabber portion on the multifunctional head of the system effectively eliminates the need for a paper feeder system.
- the use of a head mounted grabber facilitates ease in positioning of a sheet of paper on the build plate in the situation of the LOM where the grabber is positioning a sheet onto a sheet of paper bearing an adhesive layer.
- the system may further be used with sheets of paper which is advantageous from the point of view of operation and maintenance eliminating problems associated with the handling of rolls.
- the system of the invention further provides excellent control on the positioning of the adhesive on a substrate.
- the density of adhesive laid down may also be controlled. These features help to eliminate waste of adhesive.
- the device and system further include design features to prevent the build up of adhesive and resultant clogging.
- An automatic cleaning feature may also be provided with advantages from the point of view of maintenance of the device and system.
- a system provided in accordance with the present teaching may employ standard, for example A4, sheets of paper that are neither pre coated underneath with pressure sensitive adhesive or bonded to each other using xerographic techniques, for example, using "sticky" ink binder.
- standard paper for example A4
- xerographic techniques for example, using "sticky" ink binder.
- the system is economic to operate in comparison with prior art systems in that both the standard paper and the water based adhesive are readily sourced from mainstream suppliers.
- such a system can use recycled paper for example that has already been run through a regular 2D printer/office printer, further reducing the costs of operation.
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Claims (14)
- System (50) zum Herstellen eines Schichtobjekts, "LOM-System", für schnelle Prototypentwicklung eines Schichtobjekts, umfassend eine Haftmittelabgabevorrichtung für die Auftragung gesteuerter Mengen von Haftmittel auf ein Zielsubstrat, definierend eine Schicht des Objekts,
wobei die Haftmittelabgabevorrichtung (1) Folgendes umfasst:ein Haftmittelauftraggeräterad (3), das eine Vielzahl von im Umfang mit Abstand angeordneten Aussparungen (14) zum Aufnehmen von Haftmittel aufweist, wobei das Rad (3) eine Kontaktoberfläche umfasst, die für den Kontakt mit dem Zielsubstrat konfiguriert ist, und wobei die Vielzahl von Aussparungen darin gebildet ist, undeinen Haftmittelwischer (7),wobei der Haftmittelwischer (7) zusammen mit dem Auftraggeräterad (3) eine Haftmittelfüllkammer (8) zum Füllen von Haftmittel in eine oder mehrere Aussparungen definiert, wobei der Haftmittelwischer (7) die Seitenwände definiert und
die Kontaktoberfläche (13) des Haftmittelauftraggeräterads (3) die Basis davon definiert, wobei die Abmessungen und Form des Haftmittelwischers dem Haftmittelauftraggeräterad entsprechen, sodass, wenn der Haftmittelwischer an das Haftmittelauftraggeräterad gekoppelt ist, die Haftmittelfüllkammer (8), die sie definieren, eine abgedichtete Haftmittelfüllkammer ist, wobei der Haftmittelwischer eine vordere (22) und eine hintere Kante (23) umfasst, wobei die vordere oder hintere Kante (22, 23) eine Dicke aufweist, die geringer als ein Durchmesser einer Aussparung (14) ist, um ein Entgasen und Füllen von Haftmittel, wenn das Rad relativ zu dem Wischer gedreht wird, zu ermöglichen, und
wobei das Rad (3) drehbar ist, um in eine oder mehrere Aussparungen (14) gefülltes Haftmittel zu einem Zielsubstrat zu befördern und um gesteuerte Mengen von Haftmittel an separaten Punkten darauf aufzubringen. - System nach Anspruch 1, wobei die Kontaktoberfläche (13) zum Dichtungskontakt mit dem Wischer konfiguriert ist.
- System nach einem der Ansprüche 1 bis 2, umfassend ein Vorspannmittel, um den Wischer (7) in Dichtungskontakt mit dem Rad (3) zu halten.
- System nach einem der Ansprüche 1 bis 3, wobei die Kontaktoberfläche (13) einen Ring umfasst, der an das Rad montierbar ist.
- System nach einem der vorangehenden Ansprüche, wobei die Aussparungen (14) ein Volumen in der Größenordnung von 10-50 Nanoliter aufweisen.
- System nach einem der vorangehenden Ansprüche, wobei das Zielsubstrat (21) ein Papiersubstrat umfasst.
- System nach Anspruch 6, wobei das Papier in Bogenform bereitgestellt ist.
- System nach einem der vorangehenden Ansprüche, wobei das Haftmittel (i) ein Haftmittel auf Wasserbasis oder (ii) ein PVA-Haftmittel umfasst.
- System nach einem der vorangehenden Ansprüche, wobei Haftmittel mittels Kapillareffekt von einer gefüllten Aussparung auf das Zielsubstrat aufgebracht wird.
- System nach einem der vorangehenden Ansprüche, wobei das Rad (3) zum Steuern der Richtung und Winkelgeschwindigkeit der Drehung des Rads an ein Radantriebsmittel gekoppelt ist.
- System nach Anspruch 1, wobei die Haftmittelabgabevorrichtung zur Translation relativ zu einem Zielsubstrat montiert ist.
- System nach Anspruch 11, wobei die Haftmittelabgabevorrichtung zum Steuern der Lineargeschwindigkeit der Vorrichtung relativ zu dem Zielsubstrat an ein Antriebsmittel gekoppelt ist.
- System nach Ansprüchen 10 bis 12, wobei das Radantriebsmittel steuerbar ist, um eine relative Differenz bei den Winkel- und Lineargeschwindigkeiten bereitzustellen, um das Ablegen unterschiedlicher Mengen von Haftmittel auf dem Zielsubstrat wie erforderlich zu bewirken.
- System nach Ansprüchen 10 bis 12, wobei das Radantriebsmittel steuerbar ist, um das Rad (3) anzutreiben, sodass die Differenz zwischen den Winkel- und Lineargeschwindigkeiten des Rads null ist, um ein Rutschen oder Durchdrehen des Rads zu verhindern.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0723386A GB2455124B (en) | 2007-11-29 | 2007-11-29 | An adhesive dispensing device |
GBGB0818976.3A GB0818976D0 (en) | 2007-11-29 | 2008-10-16 | An adhesive dispensing device |
EP08854993.6A EP2225045B1 (de) | 2007-11-29 | 2008-11-28 | Vorrichtung und Verfahren zur schichtweisen Herstellung eines Objekts |
PCT/EP2008/066473 WO2009068672A1 (en) | 2007-11-29 | 2008-11-28 | An adhesive dispensing device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08854993.6A Division EP2225045B1 (de) | 2007-11-29 | 2008-11-28 | Vorrichtung und Verfahren zur schichtweisen Herstellung eines Objekts |
Publications (2)
Publication Number | Publication Date |
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EP2993031A1 EP2993031A1 (de) | 2016-03-09 |
EP2993031B1 true EP2993031B1 (de) | 2019-01-02 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP08854993.6A Not-in-force EP2225045B1 (de) | 2007-11-29 | 2008-11-28 | Vorrichtung und Verfahren zur schichtweisen Herstellung eines Objekts |
EP15186750.4A Not-in-force EP2993031B1 (de) | 2007-11-29 | 2008-11-28 | Klebemittelabgabevorrichtung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP08854993.6A Not-in-force EP2225045B1 (de) | 2007-11-29 | 2008-11-28 | Vorrichtung und Verfahren zur schichtweisen Herstellung eines Objekts |
Country Status (8)
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US (4) | US9278370B2 (de) |
EP (2) | EP2225045B1 (de) |
JP (3) | JP5668223B2 (de) |
CN (2) | CN104741284B (de) |
ES (2) | ES2555966T3 (de) |
GB (2) | GB2455124B (de) |
HK (1) | HK1222376A1 (de) |
WO (1) | WO2009068672A1 (de) |
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GB2455124B (en) * | 2007-11-29 | 2010-07-14 | Finite Engineering Solutions | An adhesive dispensing device |
GB2502294B (en) * | 2012-05-22 | 2015-12-09 | Mcor Technologies Ltd | Colour 3-Dimensional printing |
GB2502295B (en) * | 2012-05-22 | 2015-12-09 | Mcor Technologies Ltd | Colour 3-dimensional printing with 3D gamut mapping |
DE102013002601A1 (de) | 2013-02-15 | 2014-09-04 | Solukon Ingenieure GbR (vertretungsberechtigte Gesellschafter: Andreas Hartmann, 86391 Stadtbergen und Dominik Schmid, 86165 Augsburg) | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Bauteilen in einem Schichtbauverfahren |
GB2511316B (en) | 2013-02-27 | 2015-06-24 | Mcor Technologies Ltd | Tack and bond adhesive system and method for layered object manufacture |
JP6328958B2 (ja) * | 2014-02-26 | 2018-05-23 | リンテック株式会社 | 接着シート製造装置および製造方法 |
JP6450017B2 (ja) * | 2015-03-05 | 2019-01-09 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | 3次元物体の生成 |
GB2539485A (en) * | 2015-06-18 | 2016-12-21 | Mcor Tech Ltd | 3D Printing apparatus and a corresponding 3D metal printing method |
CN107921702B (zh) | 2015-08-26 | 2020-06-26 | 海克恩***有限公司 | 用于从多层经预先剥离的衬底构建3d物体的方法及设备 |
CN105436053A (zh) * | 2015-11-10 | 2016-03-30 | 广东欧珀移动通信有限公司 | 一种对触摸屏进行点胶的方法及装置 |
GB2545905A (en) | 2015-12-23 | 2017-07-05 | Mcor Tech Ltd | An adhesive dispensing device |
JP6839509B2 (ja) * | 2016-02-29 | 2021-03-10 | 株式会社ミマキエンジニアリング | 三次元造形物製造方法および造形装置 |
WO2017150196A1 (ja) * | 2016-02-29 | 2017-09-08 | 株式会社ミマキエンジニアリング | 三次元造形物製造方法、三次元造形物および造形装置 |
WO2017151765A1 (en) * | 2016-03-02 | 2017-09-08 | Commscope Technologies Llc | Methods and apparatus for application of glue dots to secure communication lines |
JP6365599B2 (ja) * | 2016-06-29 | 2018-08-01 | トヨタ自動車株式会社 | 電極用湿潤造粒体の製造装置および製造方法 |
JP2019046222A (ja) * | 2017-09-04 | 2019-03-22 | 富士ゼロックス株式会社 | 情報処理装置、プログラム及び三次元造形システム |
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CN109967314A (zh) * | 2019-04-23 | 2019-07-05 | 上海艾郎风电科技发展(集团)有限公司 | 风电叶片腹板精确施胶装置 |
DE102019111951A1 (de) * | 2019-05-08 | 2020-11-26 | Airbus Operations Gmbh | Vorrichtung |
JP2023507405A (ja) * | 2019-12-20 | 2023-02-22 | スリーエム イノベイティブ プロパティズ カンパニー | フィラメント接着剤を適用する方法 |
CN111730859B (zh) * | 2020-07-06 | 2022-07-15 | 哈尔滨坤程科技有限公司 | 一种连续碳纤维3d打印机 |
CN116533540B (zh) * | 2023-07-04 | 2023-09-08 | 常州市镭瞬超声技术有限公司 | 一种环形贴胶装置 |
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2007
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-
2008
- 2008-10-16 GB GBGB0818976.3A patent/GB0818976D0/en not_active Ceased
- 2008-11-28 CN CN201510176716.1A patent/CN104741284B/zh not_active Expired - Fee Related
- 2008-11-28 ES ES08854993.6T patent/ES2555966T3/es active Active
- 2008-11-28 WO PCT/EP2008/066473 patent/WO2009068672A1/en active Application Filing
- 2008-11-28 ES ES15186750T patent/ES2714351T3/es active Active
- 2008-11-28 CN CN200880125677.0A patent/CN101925411B/zh not_active Expired - Fee Related
- 2008-11-28 EP EP08854993.6A patent/EP2225045B1/de not_active Not-in-force
- 2008-11-28 EP EP15186750.4A patent/EP2993031B1/de not_active Not-in-force
- 2008-11-28 JP JP2010535400A patent/JP5668223B2/ja not_active Expired - Fee Related
- 2008-11-28 US US12/745,531 patent/US9278370B2/en not_active Expired - Fee Related
-
2014
- 2014-11-14 JP JP2014232060A patent/JP5801940B2/ja not_active Expired - Fee Related
-
2015
- 2015-08-26 JP JP2015166929A patent/JP6129916B2/ja not_active Expired - Fee Related
-
2016
- 2016-01-29 US US15/010,927 patent/US9682513B2/en active Active
- 2016-09-06 HK HK16110558.5A patent/HK1222376A1/zh unknown
-
2017
- 2017-06-20 US US15/627,790 patent/US10500793B2/en not_active Expired - Fee Related
-
2019
- 2019-12-04 US US16/703,578 patent/US20200101676A1/en not_active Abandoned
Non-Patent Citations (1)
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None * |
Also Published As
Publication number | Publication date |
---|---|
JP2015091967A (ja) | 2015-05-14 |
CN104741284A (zh) | 2015-07-01 |
EP2225045A1 (de) | 2010-09-08 |
JP5801940B2 (ja) | 2015-10-28 |
GB2455124B (en) | 2010-07-14 |
US10500793B2 (en) | 2019-12-10 |
EP2993031A1 (de) | 2016-03-09 |
WO2009068672A1 (en) | 2009-06-04 |
ES2714351T3 (es) | 2019-05-28 |
US9682513B2 (en) | 2017-06-20 |
JP2016027957A (ja) | 2016-02-25 |
HK1222376A1 (zh) | 2017-06-30 |
GB2455124A (en) | 2009-06-03 |
US9278370B2 (en) | 2016-03-08 |
CN101925411A (zh) | 2010-12-22 |
US20110094441A1 (en) | 2011-04-28 |
JP2011504804A (ja) | 2011-02-17 |
EP2225045B1 (de) | 2015-10-21 |
CN104741284B (zh) | 2016-08-24 |
GB0818976D0 (en) | 2008-11-26 |
US20160144568A1 (en) | 2016-05-26 |
ES2555966T3 (es) | 2016-01-11 |
US20200101676A1 (en) | 2020-04-02 |
GB0723386D0 (en) | 2008-01-09 |
JP5668223B2 (ja) | 2015-02-12 |
JP6129916B2 (ja) | 2017-05-17 |
CN101925411B (zh) | 2015-04-08 |
US20170282203A1 (en) | 2017-10-05 |
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